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authorDavid Woodhouse <dwmw2@infradead.org>2008-02-03 02:29:41 -0500
committerDavid Woodhouse <dwmw2@infradead.org>2008-02-03 02:30:32 -0500
commitc1f3ee120bb61045b1c0a3ead620d1d65af47130 (patch)
tree908430bf2b47fe8e96ac623ae7ab6dd5698d0938 /include/asm-sh/atomic.h
parente619a75ff6201b567a539e787aa9af9bc63a3187 (diff)
parent9135f1901ee6449dfe338adf6e40e9c2025b8150 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'include/asm-sh/atomic.h')
-rw-r--r--include/asm-sh/atomic.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/include/asm-sh/atomic.h b/include/asm-sh/atomic.h
index e12570b9339d..c043ef003028 100644
--- a/include/asm-sh/atomic.h
+++ b/include/asm-sh/atomic.h
@@ -17,7 +17,9 @@ typedef struct { volatile int counter; } atomic_t;
17#include <linux/compiler.h> 17#include <linux/compiler.h>
18#include <asm/system.h> 18#include <asm/system.h>
19 19
20#ifdef CONFIG_CPU_SH4A 20#if defined(CONFIG_GUSA_RB)
21#include <asm/atomic-grb.h>
22#elif defined(CONFIG_CPU_SH4A)
21#include <asm/atomic-llsc.h> 23#include <asm/atomic-llsc.h>
22#else 24#else
23#include <asm/atomic-irq.h> 25#include <asm/atomic-irq.h>
@@ -44,6 +46,7 @@ typedef struct { volatile int counter; } atomic_t;
44#define atomic_inc(v) atomic_add(1,(v)) 46#define atomic_inc(v) atomic_add(1,(v))
45#define atomic_dec(v) atomic_sub(1,(v)) 47#define atomic_dec(v) atomic_sub(1,(v))
46 48
49#ifndef CONFIG_GUSA_RB
47static inline int atomic_cmpxchg(atomic_t *v, int old, int new) 50static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
48{ 51{
49 int ret; 52 int ret;
@@ -58,8 +61,6 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
58 return ret; 61 return ret;
59} 62}
60 63
61#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
62
63static inline int atomic_add_unless(atomic_t *v, int a, int u) 64static inline int atomic_add_unless(atomic_t *v, int a, int u)
64{ 65{
65 int ret; 66 int ret;
@@ -73,6 +74,9 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
73 74
74 return ret != u; 75 return ret != u;
75} 76}
77#endif
78
79#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
76#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) 80#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
77 81
78/* Atomic operations are already serializing on SH */ 82/* Atomic operations are already serializing on SH */